Is King Really A lazy Piece?
Hello, everyone and welcome back to another blog. In this, I want to answer a very intriguing question, "Is king really a lazy piece?"
Chess is a team battle. All the pieces play an active role in the game with only one goal: to defeat the opposition. Yet, more often than not, we find the king hiding in a corner. It becomes more of a burden than a powerful piece.

King is the most important piece in the game and worth hiding. Yet, sometimes, it is very important to put the old man to some work. So, I am going to show some instances where some really skillful player unleashes the true power of the king and wins the game.
The Endgame Game Changer
Let's start with the most obvious one. From being the most useless piece, in the endgame, the king becomes one of the most powerful pieces. (unless there is a queen.) Often time, king activity is what makes the difference between winning and losing the endgame.
Both sides had equal materials. Then why did it go so bad for white so quickly? The answer is king activity. Now, consider an almost identical scenario, but with an active king for white. That would make it a draw.

Caution:
Do not randomly bring the king to the center. Rather, set a target, and bring the king there. In the words of GM Daniel Naroditsky, chart a course for the king. Here is a nice little example:
King Walk

A Burden
Although the king is very powerful in Endgames and sometimes in closed middlegame positions, more often than not, it hides in the corner and becomes a burden. Here is an example:
The king often becomes a target of many tactics. A completely winning game may be overturned because of a weak king. While throwing away games like the above diagram, players tend to blame the king by saying, "a good-for-nothing piece". And in fact, the king doesn't move often in the opening and open positions.
Conclusion:
